[Bug rtl-optimization/54751] [4.8 Regression] slow compile time with rtl loop unroller

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54751



Richard Guenther <rguenth at gcc dot gnu.org> changed:



           What    |Removed                     |Added

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           Keywords|                            |compile-time-hog

   Target Milestone|---                         |4.8.0



--- Comment #1 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-10-01 
10:15:13 UTC ---

I suspect we vectorize much more in 4.8?  Otherwise GCC 4.8  should have

improved this bottleneck (by generating/unrolling less loops, not by

making unrolling faster).